Joomla 3 - php and css changes

We have joomla 3 - booking site using component koparent for booking. We have couple issues that need to resolve ASAP. We will as well provide you full description of the issue. 1. The client sent us email that on italian version of the site the menu is in two rows but we check it and on any of our pc's it show it correctly in one row. we have print screen of his screen. 2. The search modul of koparent on big screen is not in middle. On all screen's should be the same in the middle. 3. Koparent search is not working. When you select the data it doesn't show any data. It should show complete and correct data. 4. Multilanguage issue - we need to have the title field somehow in koparent advert in all 4 languages. You can do this with hack but something should be done to be user friendly for the client or any idea is more then welcome - you will check full description doc!